db.json

[

                        {
                            "text": "Root",
                            "state": {
                                "opened": true
                            },
                            "type": "demo",
                            "children": [ 
                                {
                                    "text": "Child node 1",
                                    "li_attr": {
                                        "class": "li-style"
                                    },
                                    "a_attr": {
                                        "class": "a-style"
                                    },
                                    "icon": "feather icon-feather"
                                },
                                {
                                    "text": "Child node 2",
                                    "state": {
                                        "opened": true
                                    },
                                    "icon": "feather icon-feather",
                                    "children": [
                                        {
                                            "text": "Grandchild 1",
                                            "state": {
                                               
                                                "selected": true
                                            }
                                        },
                                        {
                                            "text": "Grandchild 2",
                                            "state": {
                                                "disabled": true
                                            },
                                            "children": ["Grandson 1", "Grandson 2"]
                                        },
                                        {
                                            "text": "Grandchild 3",
                                            "icon": "feather icon-feather"
                                        },
                                    ]
                                },
                                {
                                    "text": "Child node 3",

                                    "children": ["Grandchild 1", "Grandchild 1"]
                                },
                            ]
                        } 
                    
]